You can submit a freedom of information request https://www.bbc.co.uk/foi/requesting-information https://www.bbc.co.uk/foi/requesting-information . Asking for

You can submit a freedom of information request https://www.bbc.co.uk/foi/requesting-information https://www.bbc.co.uk/foi/requesting-information . Asking for a yearly spend on AWS and self managed dc’s since 2014 might help as they only started using AWS around then.